Here was something that I made a note of and just now got back to looking at it...
Deputy Jeremy Hawkins was the evidence custodian for Calumet County Sheriff's Dept. From what I can tell, he was responsible for logging the evidence, retrieving it, storing it. (I'm not sure if he was the only officer but all of his reports seem to indicate this was his main job)
On Nov 8th, Ertl, Cates, and Zhang were going through the barrels (the 3 remaining at CASO at the point should have been Barrel's #1, #2, and #3, right? #4 had already been returned, and the Matuszak barrel I believe is the cell phone barrel). They were doing this at the Sheriff's Dept.
http://www.stevenaverycase.org/wp-content/uploads/2016/04/CASO-Investigative-Report.pdf#page=152
11/08/05
Hawkins
On 11/08/05, JOHN ERTL, CHARLES CATES and GUANG ZHANG from the WI STATE CRIME LAB arrived at the
CALUMET COUNTY SHERIFF'S DEPARTMENT. The three barrels that were remaining at the sheriff s department, a barrel Deputy MATUSZAK had brought back from the AVERY property and the Suzuki Samurai door were signed over to JOHN ERTL. While
JOHN ERTL, CHARLES CATES and GUANG ZHANG were going through the barrels, I again continued logging in evidence once it arrived from the crime scene at the AVERY property.
I contacted District Attorney (DA) KENNETH KRATZ and asked DA KRATZ about keeping the barrels. I was advised by DA KRATZ that the barrels from the AVERY properly would remain in evidence. DA KRATZ also wanted the barrel marked #4 that was returned to the AVERY property to be brought back. After talking with DA KRATZ, arrangements were made for long-term storage in the back garage of the CALUMET COUNTY SHERIFF'S DEPARTMENT.
Once JOHN ERTL, CHARLES CATES and GUANG ZHANG were finished with the four barrels, the barrels and the Suzuki door were signed over to my custody. The barrels were put into the long-term secure area of the back garage. The Suzuki door was brought down and placed behind the locked cage.
There is no indication of time anywhere in the above report (the above is not the complete report, just what was reported about the barrel's)
The following is part of Reimer's report, and he indicates this happens at the COMMAND POST, which would be located at the Avery property.
http://www.stevenaverycase.org/wp-content/uploads/2016/04/CASO-Investigative-Report.pdf#page=174
11/08/05
Reimer
At 1714 hours, I did collect from the WI STATE CRIME LAB, who had brought the items up to the CALUMET COUNTY COMMAND POST,
Property Tag #8314, which was the contents of barrel#2.
At 1726 hours, I collected the
contents of the cell phone barrel, Property Tag #8316.
At 1728 hours, I collected the
contents of barrel #3, Property Tag#8317
At 1734 hours, I collected Property Tag #8319,
the contents of barrel #4.
All items listed were
transported to the CALUMET COUNTY SHERIFF'S DEPARTMENT where they were turned over to the evidence locker.
Where is the contents of barrel #1? Further looking, I see that it was reported wrong in Reimer's report.... At 1718 hours, I collected Property Tag #8315, a RAV4 license plate. <<< #8315 is contents of barrel #1.
How did the contents of barrel #4 make it back to the Avery property? Remember this is the also the same day they were told to bring back barrel #4 to the dept and it wasn't at the Dept when they were going through the barrel's earlier.
And my biggest question is.... if they went through the barrel's at the Sheriff's Dept, why in the world did they take it back to the Avery property (Calumet Command Post) to give to Reimer so that he could just take it back to the Sheriff's Dept? Why didn't they just leave it with Hawkin's when they were there? He was the evidence guy.
The contents of the barrel's were retrieved and handed over to a DCI officer to be taken to the Lab by Hawkins on the 9th.
So KZ must be able to still use the "ineffective counsel" argument. 
